source: src/compiler.ma @ 2693

Last change on this file since 2693 was 2693, checked in by sacerdot, 8 years ago
  1. Stuff moved to correct places.
  2. ERTLptr pass added
File size: 2.9 KB
Line 
1
2include "Clight/label.ma".
3include "Clight/SimplifyCasts.ma".
4include "Clight/switchRemoval.ma".
5include "Clight/toCminor.ma".
6include "Cminor/initialisation.ma".
7include "Cminor/toRTLabs.ma".
8
9definition front_end : clight_program → res (costlabel × clight_program × RTLabs_program) ≝
10λp.
11  let p ≝ program_switch_removal p in
12  let 〈p',init_cost〉 ≝ clight_label p in
13  let p ≝ simplify_program p' in
14  ! p ← clight_to_cminor p;
15  let p ≝ cminor_to_rtlabs init_cost p in
16  return 〈init_cost,p',p〉.
17
18include "RTLabs/RTLabsToRTL.ma".
19include "RTL/RTLToERTL.ma".
20include "ERTL/ERTLToLTL.ma".
21(*
22include "LTL/LTLToLIN.ma".
23include "LIN/LINToASM.ma".
24*) include "ASM/ASM.ma". include "LIN/LIN.ma".
25   axiom ltl_to_lin: ltl_program → lin_program.
26   axiom lin_to_asm: lin_program → pseudo_assembly_program.
27
28(* these are already defined in utilities/fixpoint.ma and ERTL/Interference.ma
29axiom the_fixpoint : fixpoint.
30axiom build : ∀valuation. coloured_graph valuation.
31*)
32
33definition back_end : RTLabs_program → pseudo_assembly_program ≝
34λp.
35  let p ≝ rtlabs_to_rtl p in
36  let p ≝ rtl_to_ertl p in
37  let p ≝ ertl_to_ltl p in  (* TODO: abstract over colouring *)
38  let p ≝ ltl_to_lin p in
39          lin_to_asm p.
40
41(* JHM: minimum needed for assembler axiom to typecheck *)
42(* JHM: moved from ASMCostsSplit.ma                     *)
43(* JHM: should move elsewhere in ASM/                   *)
44definition object_code ≝ list Byte.
45definition costlabel_map ≝ BitVectorTrie costlabel 16.
46
47axiom assembler : pseudo_assembly_program → res (object_code × costlabel_map).
48
49(* include "ASM/Policy.ma".
50
51definition assembler : pseudo_assembly_program → res (object_code × costlabel_map) ≝
52λp.
53  let 〈preamble, list_instr〉 ≝ p in
54  (* TODO: fail if p is too large. *)
55  let p' ≝ 〈preamble, list_instr〉 in
56  ! sigma_pol ← opt_to_res ? (msg Jump_expansion_failed) (jump_expansion' p');
57  let sigma ≝ λppc. \fst (sigma_pol ppc) in
58  let pol ≝ λppc. \snd (sigma_pol ppc) in
59  OK ? (assembly p sigma pol).
60cases daemon
61qed.
62*)
63
64include "ASM/ASMCosts.ma".
65
66definition lift_cost_map_back_to_front :
67  ∀clight, code_memory, lbls.
68    let abstat ≝ ASM_abstract_status code_memory lbls in
69   (∀l. (as_cost_labelled abstat l) + ¬(as_cost_labelled abstat l)) →
70  as_cost_map abstat → clight_cost_map clight ≝
71  λclight,code_memory,lbls,dec,k,asm_cost_map.
72  lift_sigma_map_id … 0 (* labels not present in out code get 0 *)
73    dec k asm_cost_map.
74
75include "ASM/ASMCostsSplit.ma".
76
77definition compile : clight_program →
78  res (object_code × costlabel_map × (𝚺labelled:clight_program. clight_cost_map labelled)) ≝
79λp.
80  ! 〈init_cost,p',p〉 ← front_end p;
81  let p ≝ back_end p in
82    ! p ← assembler p;
83  let k ≝ ASM_cost_map p ? in
84  let k' ≝ lift_cost_map_back_to_front
85    p'
86    (load_code_memory (\fst p))
87    (\snd p)
88    ? k
89    in
90  return 〈p, ❬p', k'❭〉.
91  cases daemon
92  qed.
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